The 1908-23 Washington/Franklin stamps are a challenging series to properly identify but they are also known to be widely faked and altered. Some experts place the number of faked and altered stamps at 50%-60% or higher.
The frequency or likelihood of a stamp being faked/altered is indicated by a simple five level color scale shown are right.
Click on Thumbnail to see high resolution image.
All images shown are genuine stamps.
Some images courtesy of Siegel Auction Galleries.